WO2013143044A1 - Procédé et dispositif de traitement d'un composé organique volatil - Google Patents

Procédé et dispositif de traitement d'un composé organique volatil Download PDF

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Publication number
WO2013143044A1
WO2013143044A1 PCT/CN2012/001485 CN2012001485W WO2013143044A1 WO 2013143044 A1 WO2013143044 A1 WO 2013143044A1 CN 2012001485 W CN2012001485 W CN 2012001485W WO 2013143044 A1 WO2013143044 A1 WO 2013143044A1
Authority
WO
WIPO (PCT)
Prior art keywords
dew point
point temperature
exhaust gas
volatile organic
humidifier
Prior art date
Application number
PCT/CN2012/001485
Other languages
English (en)
Chinese (zh)
Inventor
林易成
Original Assignee
承源环境科技企业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47559281&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2013143044(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 承源环境科技企业有限公司 filed Critical 承源环境科技企业有限公司
Priority to JP2015502034A priority Critical patent/JP6273254B2/ja
Priority to SG11201405629PA priority patent/SG11201405629PA/en
Priority to US14/379,386 priority patent/US9504935B2/en
Priority to KR1020147026784A priority patent/KR101982374B1/ko
Publication of WO2013143044A1 publication Critical patent/WO2013143044A1/fr
Priority to IN1744KON2014 priority patent/IN2014KN01744A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033—Other features
    • B01D5/0051—Regulation processes; Control systems, e.g. valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0087—Recirculating of the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/009—Collecting, removing and/or treatment of the condensate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/346—Controlling the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0486—Operating the coating or treatment in a controlled atmosphere

Definitions

  • the invention relates to a method and a device for treating volatile organic compounds, in particular to spraying water mist to increase the humidity of the exhaust gas to be treated, and dehumidifying the exhaust gas after humidification by condensation, so that the humidity ratio of the exhaust gas before and after treatment is maintained. Almost unchanged design.
  • VOCs Volati le Organic Compounds
  • a condensing device for separating water-soluble volatile organic compounds from the exhaust gas.
  • a condenser 11 is disposed inside an exhaust gas flow passage 10 to allow the exhaust gas passing through the condenser 11. The temperature is lowered to below the dew point temperature, and the water-soluble volatile organic substance contained in the exhaust gas is condensed and separated by the condensation of the volatile organic substance itself and the adsorption of the condensed water drop; then, a downstream end of the condenser 11 is disposed.
  • the mist eliminator 12 or the second condenser allows the smaller-volume volatile organic compounds and moisture to grow and capture or separate or condense; or, by the condenser 11 or The secondary condensation is condensed and separated and the droplets separated by the mist eliminator 12 are dropped to the sump 13 disposed under the condenser 11 and the demister 12; however, due to dripping to the condensation
  • the droplets contained in the liquid collection tank 13 do not contain a high concentration of volatile organic compounds, and it is difficult to recycle and reuse volatile organic compounds, and a large amount of volatile organic matter is generated. Waste water, waste water produced by a large number must be processed further.
  • the main technical problem to be solved by the present invention is to overcome the problem of generating a large amount of waste water existing in the prior art, and to provide a method and a device for treating volatile organic compounds, which have almost no waste water and have improved recovery of volatile organic matters.
  • the concentration also has the effect of washing the suspended particles with the effect of reuse.
  • the technical solution adopted by the present invention to solve the technical problem thereof is:
  • a volatile organic matter treatment method for treating a waste gas stream containing volatile organic compounds, and simultaneously washing the suspended particles including: a dew point temperature sensing step, sensing the dew point temperature of the atmosphere as a reference temperature; a humidifying and condensing In the first step, spraying the water mist causes the exhaust gas stream to increase humidity and condense to generate a condensate containing volatile organic compounds; a condensation dew point temperature sensing step, sensing the temperature of the airflow after the condensation treatment; a droplet collection step, collecting humidification And condensing the droplets dripped by the pulverization, and collecting the collected droplets for circulating spraying to humidify and condense; and controlling the turbulent, controlling the temperature of the condensed airflow to be close to the reference temperature.
  • the humidifying and condensing step is to spray the low-temperature water mist to simultaneously humidify and condense, or the humidifying and condensing step is to spray the normal temperature water mist and first condense after humidification. Further, a pre-cooling step is further added before the humidification and condensation steps.
  • the first embodiment of the volatile organic matter processing apparatus of the present invention is for treating a waste gas stream containing volatile organic compounds, and includes: a dew point temperature sensor disposed outside an exhaust gas flow passage for sensing the atmosphere a dew point temperature; a humidifier disposed inside the exhaust gas flow passage for spraying a mist on the passing exhaust gas stream to increase humidity, and for washing the suspended particles; a condenser disposed inside the exhaust gas flow passage and located a downstream end of the humidifier for condensing the humidified exhaust gas stream to produce a condensate containing volatile organic compounds; a sump disposed inside the exhaust gas flow passage and located at the humidifier and the condenser a lower portion for receiving droplets dripping from the humidifier and the condenser, and conveying the collected droplets to the humidifier for cyclic spraying; a condensed dew point temperature sensor disposed at the exhaust gas stream Inside the channel for sensing the temperature of the airflow after condensation treatment; and a controller connecting the dew point temperature sensor, the
  • a second embodiment of the volatile organic matter processing apparatus of the present invention is for treating an exhaust gas stream containing volatile organic compounds, and includes: a dew point temperature sensor disposed outside an exhaust gas flow channel for sensing the atmosphere a dew point temperature; a low temperature humidifier disposed inside the exhaust gas flow passage for spraying a mist of the exhaust gas stream to increase humidity, and cooling and condensing to produce a condensate containing volatile organic compounds, and may be used to wash the suspended particles a collecting tank disposed inside the exhaust gas flow passage and below the low temperature humidifier for receiving droplets dripped from the low temperature humidifier, and cooling the collected droplets by a cooler Delivered to this low a humidifier and circulating spray; a condensed dew point temperature sensor disposed inside the exhaust gas flow passage for sensing the temperature of the condensed air stream; and a controller coupled to the dew point temperature sensor, the cooler and The condensed dew point temperature sensor, wherein the dew point temperature sensed by the dew point temperature sensor is used as
  • a pre-cooler is further provided, and the pre-cooler is disposed inside the exhaust gas flow passage and at the upstream end of the humidifier or the low-temperature humidifier.
  • the beneficial effects of the present invention are that it has almost no waste water generation and has an effect of increasing the recovery concentration of volatile organic compounds for reuse, and also has the effect of washing suspended particles.
  • FIG. 1 is a schematic view showing the structure of a conventional volatile organic matter processing apparatus.
  • Figure 2 is a schematic view showing the structure of the first embodiment of the present invention.
  • Figure 3 is a schematic view showing the structure of a second embodiment of the present invention.
  • Figure 4 is a graphical representation of the variation of the humidity properties of the process of the present invention in a moisture profile.
  • a first embodiment of the volatile organic matter processing apparatus of the present invention includes:
  • a dew point temperature sensor 21 is disposed outside an exhaust gas flow passage 20 for sensing the dew point temperature of the atmosphere, and may be a wet bulb thermometer or a combination of a dry bulb thermometer and a relative humidity meter;
  • a humidifier 22 is disposed inside the exhaust gas flow passage 20 for spraying the mist of the passing exhaust gas to increase the humidity, and can also be used for washing the suspended particles;
  • a condenser 23 disposed inside the exhaust gas flow passage 20 and located at a downstream end of the humidifier 22 for condensing the humidified exhaust gas stream to produce a condensate containing volatile organic compounds
  • An sump 24 is disposed inside the exhaust gas flow passage 20 and below the humidifier 22 and the condenser 23 for receiving droplets dripping from the humidifier 22 and the condenser 23, And collecting the collected droplets to the humidifier 22 for circulating spraying;
  • a condensed dew point temperature sensor 25 is disposed inside the exhaust gas flow passage 20 for sensing the temperature of the airflow after condensation treatment by the condenser 23, and may be a wet bulb thermometer or a combination of a dry bulb thermometer and a relative humidity meter ;
  • a controller 26 is coupled to the dew point temperature sensor 22, the condenser 23 and the condensed dew point temperature sensor 25, and the dew point temperature sensed by the dew point temperature sensor 22 is used as a reference temperature, and the condensation dew point is The post-condensation dew point temperature sensed by the temperature sensor 25 is fed back to the controller 26, which in turn controls the degree of condensation through the condenser 23 to control the condensation of the gas stream dew point temperature through the condenser 23 to near the reference temperature.
  • a second embodiment of the volatile organic matter processing apparatus of the present invention includes:
  • a dew point temperature sensor 21 is disposed outside an exhaust gas flow passage 20 for sensing the dew point temperature of the atmosphere, and may be a wet bulb thermometer or a combination of a dry bulb thermometer and a relative humidity meter;
  • a low temperature humidifier 28 is disposed inside the exhaust gas flow passage 20 for spraying the mist of the passing exhaust gas to increase the humidity, and cooling and condensing to generate a condensate containing volatile organic substances, and can also be used for washing the suspended particles;
  • An sump 24a is disposed inside the exhaust gas flow passage 20 and below the low temperature humidifier 28 for receiving droplets dripped from the low temperature humidifier 28 and cooling the collected droplets The device 29 is cooled and delivered to the low temperature humidifier 28 for cyclic spraying;
  • a condensed dew point temperature sensor 25 is disposed inside the exhaust gas flow passage 20 for sensing the temperature of the airflow after being condensed by the low temperature humidifier 28, and may be a wet bulb thermometer or a dry bulb thermometer and a relative humidity meter Matching
  • a controller 26a connects the dew point temperature sensor 22, the cooler 29 and the condensed dew point temperature sensor 25, and uses the dew point temperature sensed by the dew point temperature sensor 22 as a reference temperature, and the condensation dew point
  • the condensed dew point temperature sensed by the temperature sensor 25 is fed back to the controller 26, which in turn controls the degree of cooling of the cooler 29 to control the condensation of the gas stream dew point temperature through the low temperature humidifier 28 to near the reference temperature.
  • a precooler 27 may be further disposed, and the precooler 27 is disposed inside the exhaust gas flow passage 20 and located at the humidifier 22 or the low temperature humidifier.
  • the upstream end of 28 reduces the load on the condenser 23 or the low temperature humidifier 28.
  • the present invention first uses the dew point temperature sensor 21 Sensing the dew point temperature of the atmosphere as the reference temperature (corresponding to a point in the moisture map (labeled as point A) indicating the humidity property of the atmosphere); spraying the water mist by the humidifier 22 (or the low temperature humidifier 28) Increase the humidity of the exhaust gas stream (a corresponding point in the moisture map (labeled as point B) indicates the humidity property of the exhaust gas after humidification, usually located at the relative humidity saturation online); then the condenser 23 (or the low temperature increase) The humidifier 28) condenses the humidified exhaust gas stream, and after the condensed dew point temperature sensor 25 senses the condensation dew point temperature, and controls the condensed air flow dew point temperature by the controller 26 (or 26a).
  • the humidity property of the exhaust gas is first humidified from point A to point B, and then due to condensation Wet to the point C, since the points A and C in FIG moisture near the longitudinal position of the contour, reverse this trend before and after the exhaust gas passes the humidity ratio of the present invention process almost unchanged.
  • the sump 24 (or 24a) is from the humidifier 22 and the condenser 23 (or The droplets collected by the low-temperature humidifier 28) will hardly increase or decrease after being sprayed, and have little effect of generating waste water; and the condensation generated by circulating the collected droplets and condensing
  • the concentration of volatile organic compounds in the liquid is getting more and more Concentration, the liquid droplets collected by the liquid collection tank 24 (or 24a) can be taken out for volatile organic matter recovery treatment in a timely manner, thereby improving the recovery concentration of volatile organic compounds for reuse.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Ventilation (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

La présente invention concerne un procédé et un dispositif destinés à traiter un composé organique volatil. Le procédé comprend une étape de détection de la température du point de rosée, destinée à détecter la température du point de rosée de l'atmosphère, en tant que température de référence; une étape d'humidification et de condensation, destinée à pulvériser de la vapeur d'eau, de sorte que le flux des gaz d'échappement soit humidifié et condensé, afin de générer un liquide condensé qui comprend le composé organique volatil; une étape de détection de la température du point de rosée condensé, afin de détecter la température du flux du gaz condensé; une étape de recueil des gouttelettes liquides, destiné à recueillir des gouttelettes liquides gouttant de l'étape d'humidification et de condensation et à utiliser les gouttelettes liquides recueillies pour une pulvérisation cyclique, de manière à humidifier et condenser; et une étape de commande, destinée à commander la température du flux de gaz condensé près de la température de référence. L'invention a pour effet d'améliorer la concentration récupérée du composé organique volatil en vue du recyclage avec quasiment aucune production d'eaux usées, ainsi que de laver les particules en suspension.
PCT/CN2012/001485 2012-03-31 2012-11-02 Procédé et dispositif de traitement d'un composé organique volatil WO2013143044A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2015502034A JP6273254B2 (ja) 2012-03-31 2012-11-02 揮発性有機物の処理方法及び揮発性有機物処理装置
SG11201405629PA SG11201405629PA (en) 2012-03-31 2012-11-02 Process and device for treating volatile organic compound
US14/379,386 US9504935B2 (en) 2012-03-31 2012-11-02 Process and apparatus for treatment of volatile organic compounds
KR1020147026784A KR101982374B1 (ko) 2012-03-31 2012-11-02 휘발성 유기 화합물의 처리를 위한 방법 및 장치
IN1744KON2014 IN2014KN01744A (fr) 2012-03-31 2014-08-20

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210092287.6 2012-03-31
CN201210092287.6A CN103357191B (zh) 2012-03-31 2012-03-31 挥发性有机物处理方法及装置

Publications (1)

Publication Number Publication Date
WO2013143044A1 true WO2013143044A1 (fr) 2013-10-03

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PCT/CN2012/001485 WO2013143044A1 (fr) 2012-03-31 2012-11-02 Procédé et dispositif de traitement d'un composé organique volatil

Country Status (10)

Country Link
US (1) US9504935B2 (fr)
EP (1) EP2644248B1 (fr)
JP (1) JP6273254B2 (fr)
KR (1) KR101982374B1 (fr)
CN (1) CN103357191B (fr)
IN (1) IN2014KN01744A (fr)
MY (1) MY169864A (fr)
SG (1) SG11201405629PA (fr)
TW (1) TW201338845A (fr)
WO (1) WO2013143044A1 (fr)

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CN107355928B (zh) * 2017-07-21 2018-06-26 江苏和顺布业有限公司 一种降温设备
CN111214931B (zh) * 2018-11-23 2022-05-13 致茂电子(苏州)有限公司 冷凝系统
KR102271178B1 (ko) * 2020-05-20 2021-06-30 주식회사 아이에이큐솔루션 이중 함체 구조의 토양가스 배출 시스템
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CN115613427B (zh) * 2022-12-15 2023-03-10 山东远通公路工程集团有限公司 一种公路沥青铺设温度检测装置

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TW201028206A (en) * 2009-01-22 2010-08-01 Univ Yuanpei Desorption chamber for waste volatile-organic-compound gas filter utilizing plasma desorption and regeneration device having the desorption chamber
JP2010201282A (ja) * 2009-02-27 2010-09-16 Nippon Refine Kk 揮発性有機化合物の回収方法及び回収装置
CN101987274A (zh) * 2009-08-06 2011-03-23 杰智环境科技股份有限公司 一种利用水蒸汽加强净化有机废气的装置及方法

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EP2644248A1 (fr) 2013-10-02
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SG11201405629PA (en) 2014-11-27
TWI444222B (fr) 2014-07-11
JP2015512781A (ja) 2015-04-30
IN2014KN01744A (fr) 2015-10-23
EP2644248B1 (fr) 2016-06-22
KR20140147826A (ko) 2014-12-30
US9504935B2 (en) 2016-11-29
MY169864A (en) 2019-05-24
US20150020682A1 (en) 2015-01-22
CN103357191B (zh) 2015-06-17
JP6273254B2 (ja) 2018-01-31
KR101982374B1 (ko) 2019-05-27

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